bond formed upon interaction between molecular species, one of which serves as a
donor and the other as an acceptor of the electron pair to be shared in the complex
. In spite of the analogy of dative bonds with covalent bonds, in that both types
imply sharing a common electron pair between two vicinal atoms, the former are distinguished
by their significant polarity
, lesser strength, and greater length. The distinctive feature of dative bonds is
that their minimum-energy rupture in the gas phase or in inert
solvent follows the heterolytic bond cleavage path.